| /* |
| * Copyright 2010-2016 Intel Corporation. |
| * |
| * This library is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU Lesser General Public License as published |
| * by the Free Software Foundation, version 2.1. |
| * |
| * This library is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| * Lesser General Public License for more details. |
| * |
| * You should have received a copy of the GNU Lesser General Public |
| * License along with this library; if not, write to the Free Software |
| * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA |
| * 02110-1301 USA. |
| * |
| * Disclaimer: The codes contained in these modules may be specific |
| * to the Intel Software Development Platform codenamed Knights Ferry, |
| * and the Intel product codenamed Knights Corner, and are not backward |
| * compatible with other Intel products. Additionally, Intel will NOT |
| * support the codes or instruction set in future products. |
| * |
| * Intel offers no warranty of any kind regarding the code. This code is |
| * licensed on an "AS IS" basis and Intel is not obligated to provide |
| * any support, assistance, installation, training, or other services |
| * of any kind. Intel is also not obligated to provide any updates, |
| * enhancements or extensions. Intel specifically disclaims any warranty |
| * of merchantability, non-infringement, fitness for any particular |
| * purpose, and any other warranty. |
| * |
| * Further, Intel disclaims all liability of any kind, including but |
| * not limited to liability for infringement of any proprietary rights, |
| * relating to the use of the code, even if Intel is notified of the |
| * possibility of such liability. Except as expressly stated in an Intel |
| * license agreement provided with this code and agreed upon with Intel, |
| * no license, express or implied, by estoppel or otherwise, to any |
| * intellectual property rights is granted herein. |
| */ |
| |
| #ifndef _COIPERF_COMMON_H |
| #define _COIPERF_COMMON_H |
| |
| /** @ingroup COIPerf |
| * @addtogroup COIPerfCommon |
| @{ |
| |
| * @file common/COIPerf_common.h |
| * Performance Analysis API */ |
| #ifndef DOXYGEN_SHOULD_SKIP_THIS |
| #include "../common/COITypes_common.h" |
| |
| #ifdef __cplusplus |
| extern "C" { |
| #endif |
| |
| #endif // DOXYGEN_SHOULD_SKIP_THIS |
| |
| /////////////////////////////////////////////////////////////////////////////// |
| /// |
| /// Returns a performance counter value |
| /// |
| /// This function returns a performance counter value that increments |
| /// at a constant rate for all time and is coherent across all cores. |
| /// |
| /// @return Current performance counter value or 0 if no performance counter |
| ///// is available |
| /// |
| /// |
| COIACCESSAPI |
| uint64_t COIPerfGetCycleCounter(void); |
| |
| /////////////////////////////////////////////////////////////////////////////// |
| /// |
| /// Returns the calculated system frequency in hertz. |
| /// |
| /// @return Current system frequency in hertz. |
| /// |
| COIACCESSAPI |
| uint64_t COIPerfGetCycleFrequency(void); |
| |
| #ifdef __cplusplus |
| } /* extern "C" */ |
| #endif |
| /*! @} */ |
| |
| #endif /* _COIPERF_COMMON_H */ |
